In mixed weak acid titration, calculation of PH of stoichiometric point, calculation of end point error and stepwise titration criterion are the must specific problems.

• 在混合弱酸滴定中,化学计量点时PH值计算、终点误差计算,分步滴定判据是三个必须明确的问题,本文对混合弱酸滴定的这三个问题作一探讨。